Home / 81,724.95-112,780.53-45,914.94

Finding the Fourth Proportional to 81,724.95, 112,780.53 and 45,914.94

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Solution

The fourth proportional to 81,724.95, 112,780.53 and 45,914.94 is: 63,362.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,724.95 : 112,780.53 = 45,914.94 : x
  2. Step 2: Convert to fraction form
    81,724.95/112,780.53 = 45,914.94/x
  3. Step 3: Cross multiply
    81,724.95x = 112,780.53 × 45,914.94
  4. Step 4: Simplify right side
    81,724.95x = 5,178,311,268.12
  5. Step 5: Solve for x
    x = 5,178,311,268.12/81,724.95
  6. Step 6: Final answer
    x = 63,362.67

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.